DAY 67: Min Stack & Monotonic Stack (NGE & PGE) | Stacks & Queues in DSA

🚀 Introduction Welcome to Day 67 of my DSA Journey!After solving around 30 practice problems on Linked Lists, I’ve now moved on to another fundamental and powerful data structure in problem-solving — Stacks & Queues. Over the past 3 days, I focuse...